121700573 has 2 divisors, whose sum is σ = 121700574. Its totient is φ = 121700572.

The previous prime is 121700533. The next prime is 121700597. The reversal of 121700573 is 375007121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80766169 + 40934404 = 8987^2 + 6398^2 .

It is an emirp because it is prime and its reverse (375007121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121700573 - 2⁸ = 121700317 is a prime.

It is a super-2 number, since 2×121700573² = 29622058937056658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121700533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60850286 + 60850287.

It is an arithmetic number, because the mean of its divisors is an integer number (60850287).

Almost surely, 2^121700573 is an apocalyptic number.

It is an amenable number.

121700573 is a deficient number, since it is larger than the sum of its proper divisors (1).

121700573 is an equidigital number, since it uses as much as digits as its factorization.

121700573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 121700573 is about 11031.7982668285. The cubic root of 121700573 is about 495.5614796623.

Adding to 121700573 its reverse (375007121), we get a palindrome (496707694).

The spelling of 121700573 in words is "one hundred twenty-one million, seven hundred thousand, five hundred seventy-three".